[credit_guy]

This whole article severely understates the difficulty of making a bomb.

There are two ways to make a bomb: either using weapons grade uranium (like the Hiroshima bomb) or weapons grade plutonium (like the Nagasaki bomb). The first requires uranium enrichment facilities and the second requires spent fuel reprocessing facilities. No such facilities exits in the Nordic countries, and both are stupendously complex. You can't just wave a want and build them. And certainly not in a clandestine way (which the author does not actually propose). If they start on this path, maybe, maybe, their own population would accept, but it's unlikely the population of other countries would accept too. Lots of the parts and raw materials needed for these facilities will need to be imported, the Nordic countries can't simply build the entire supply chain, no matter how rich they are per capita. The access to some of that upstream supply chain will be curtailed, because other countries are either strategic adversaries (Russia, China) or democracies where a large fraction of the population opposes nuclear armament. Add to that that some of the key scientists and engineers involved in such a project could be the target of assassinations (oh, wait, Russia would never do that, would it?).

[verzali]

Sweden has been here already: https://en.wikipedia.org/wiki/Swedish_nuclear_weapons_progra...

Considering they got to within 6 months of finishing a bomb in 1965, I think they could probably do it again today.

[credit_guy]

Yes, Sweden had a nuclear weapons program and they stopped short of building a bomb. But things are very different today.

There are 2 main differences. Sweden has signed the nuclear non-proliferation treaty (NPT) and Sweden is now a member of NATO. Both of these things result in Sweden being extremely unlikely to be able to pursue a nuclear weapons program in a clandestine way. And the article doesn't even imply that it would try that, given that it talks about a Nordic compact to pursue the bomb.

Announcing to everyone that you are trying to get the bomb implies that you first withdraw from the NPT. Legally, all the nuclear suppliers (such as Urenco) are obligated to immediately stop shipments to you. All your nuclear power plants will run on fumes. Once you run out of whatever inventories you have (most importantly nuclear fuel), you need to find way to supply yourself with what you need. Sweden gets 30% of its electricity from nuclear power plants [1]. If the population really, really wants to pursue a bomb, they can probably tough it out and find ways to overcome a 30% drop in electricity generation. But it's a tall ask.

[1] https://en.wikipedia.org/wiki/Nuclear_power_in_Sweden